Rock-drill-feeding mechanism.



PTBNTED EEB. 12, 1907.

T; TURNER. 4 ROCK DRILL PEBDINGMECHANISM.

APPLICATION FILED MAY 9, 1906.

3 SEEETS-SHiIET 1.

No. 843,718. PATfENTED FEB. l2, 1907.

T. TURNER.

'ROCK DRILL PEEDING MEGHANISM. APPLICATION FILED MAY@ 190s.

v n 'l TATENTBD PEB. V12, 1907. T. TURNLRlv l f ROCK DRILLTEBDT-NGMEGHTTTTISITI'.`

APPLIGTLON FILED MAY 9. 1966.

37mm T citizen of the United States, residing at Ot and a pressureadequate for the former will particularly pneum atie hammer operatedupper portion o" the nwvhanism.

NITED STATES .THOMAS TURNER, OF OTTUMWA, IOWA.

ROCK-DRI'L-L-FEEDING MECHANISM.

Specfiation of Letters Patent.

Patented Feb. 12, 1921*?L Application filed May 9, 1.906. Serial No.315,978.

To all whom, it vta/y concern:-

Be it known that I, THOMAS TURNER, a

tumwa, in the county of VVapello and State of Iowa, have invented av newand useful 1iook-Dri]l-Feed'ing Mechanism, of whieh the following is aspeciiication. v

This invention relates to fluid-actuated ,mechanism for feeding,rmotors, and more drills, to their Work, said invention'being not limitedto drills, but capable of successful employment in other relations.

1n rock-drilling difliculty is experienced in varying the pressure ofthe feed mechanism on the motor in order to secure the proper holdingpower in stone or material of ditl'erent characters. Thus, for instance,when a hole is being drilled inhard rock more pressure is required thanin rock of softereharacter cause the drill to stick in the latter, sothat trouble is experienced in turning the same.

One ol the principal objects ofthe present invention is to provide noveland simpleA mechanism whereby the pressure upon themotor may be variedto a comparatively great extent in order to suit the differentconditions ol' use and without altering the pressure olE the motivefluid;

Furthermore, it often happens that the drills become lodged in thedrill-holes, and very great dilliculty is experienced in releasing them.Y

A'l'urther and important ob'iect is to provide simple, novel, andeffective means Whereby'the l'ull power of the motor-feeding mechanism,il' necessary, can be employed to detach the drill should it'thus becomefast in the drill-hole.

Still another object is to provide means whereby the drill may beconveniently rotated.'

While the invention is susceptible ol embodiment in a variety ol" ways,the preferred iforln olE construction is illustrated in the aeweompaiiying drawings, wllerein- 'Figure 1 is a side elevation ol thenieehanism. Fig. 2 is a top plan view of the same. Fie'. 35 is :1nelevation o? the rear end ol: the Fig'. 4 is an elevation oi the lrontend-ol the same.

' ,quideway 17.

FigA 5 is a hmrizomal sectional view through the' structure, and Fig. 6is a vertical crosssectional viei Similar reference-numerals designatecorresponding parts in all .the vfigures of the drawings In theembodiment illustrated a vsupport is employed comprising an'uprightstandard 7, having a foot 8 at its lower end and a clamping-screw 9threadedl into its upper end A right-angularlydisposed arm 10 hasasplitl .clamping-collar 11, that is slidably mounted on the standard'and is capable of-vbeing secured at any desired position thereon, thesections of said collar being held together by tie-bolts 12. Slidable'on the horizontal arm 10 is another clamping-collar 13, provided withan upstanding sectional socket-piece 14, forming one member of a swivel.The yother end of this swivel comprises a head-plate 15, having adepending stud 16,' that is journaled in the socket. The head-plate isprovided' with an intermediate longitudinally disposed guideway 17, andonopposite sides thereof are upstanding ears 18,l carrying splitclamping-collars 19. It will ofcourse -be understood that the standard 7may be of any suitable height'desired and that it may be rigidly clampedin position b the screw 9. Furthermore, the arm` 1'0, whi e adjustableon the standard, may be secured` at an point by the clamping-collar 11.In like manner the collar 13 is adjustable longitudinally and rotatablyupon the arm 10,A but can be held at any point thereon, and the he ad 15while rotatable with respect to the collar 18, can also be rigidlyelamped. Thus said hea-fl is capable of a Wide 'range of adjust-v mentwith respect to the supporting-standard 7 Slidably mounted 0n the vhead15 is` the motor. While this motor may be of any desired character, itis preferably of the recipro eatory piston type and, briefly described,is

constructed as follows: An outer casingl is provided on its under Sidewith a longitudi# 'v nally-disposed sli-de 21, that is movable in theThe outer casing has a crosshea'l 22 at one end and a cap 23 fitted onthe other end. Said casing is also provided with a-n annular internalchannel 24, with which communicates a motive-luid-sup ply pipe 25.Rotatably mounted in the casing 2O is an inner casing 26, constitutinglthe cylinder IOC:

ing and has an angu proper of the motor, and operating therein tsuppliedfrom the pipe 25 through flexible is the usual reciprocatoryhammer-piston 27. It is believed to be unnecessar to enter into adescription ofthe operation o this hammer, as the same is wellunderstood. Suffice it to state that the motiveA fluid from the annularchannel 24 of the outer casing finds access to the interior of the innercasing through a plurality of ports 28, communicating with'sairl annularchannel. The inner casing 26 at one end has a seat in which istted abearingcollar 29, having a tool-receiving socket 30,

that is angular in cross-section. A plug 31 is threaded into the oposite end of the casl ar projecting stud 32. A shaft 33 is journale'din the cap 23 and has a cap 34, that fits over the stud 32. A pinion 35,Secured to the outer ends ofthe shaft 33, is in mesh with a gear-wheel36, carried by a hand-wheel 37, journale'd on4 a spindle 38, secured tothe rear end of the outer casing, as elearl shown inFigs. 1 and 2. Thecrosshead 22 lia-s a toolsreceiving socket 39, which is alined with thesocket 30, and a drill or tool stern-40 has'an enlarged flange or collar41, that ,fits inthe socket 39, said tool-stem also having an angularinner portion 42, that engages in the angular socket 30 of the innercasing. L

AFrom` the aboveit'will be evident that the hammer-piston 27 will Ybeactuated by the motive fluid supplied from the pipe 25 and will operateupon the inner end of the toolstem, .At the same time b turning l thehand-wheel 37 the inner casing will berevolved, so th at bothvthehammer-pistonr'and the drill will also be rotated.

Perhaps the most important feature of the invention is the means forfeeding the motor and the drill or other tool carried' thereby to theirwork. This means is preferably constructed as follows: Cylinders ofLdifferent diameters rdesignated, respectively, 43 and 44) areadjustablymounted in the clamps 19 and are normally held thereby againstInovement. Operating in these cylinders are pistons 45 and 46, also ofdi'erent diarreters. Piston-rods 47 connected to the pistons, projectfrom thevcylinders and pz 'ss through tlic ends of the crcsshead722 ofthe outer casing 20, being held in position by nuts 4S. It will heobserved that these nuts have inner ref-Q duced portions 49, andjournaled upon one oi' the reduced portions is` one end of a latch 50.The other end Vhas a slot 51, that reoeivrs the reduced port ionof theother nut. An intermedilte slot 52 receives the dr ill-si ein. The widthol' the slotis less than the [lange or enlargement d41 of said stern.The cylinders have connected to their end portions feedpiprs 53, whichpipes communicate with the cylinders on o pcsite sides ol' the pistons.Controlling an( relief valvcs 54 are located in the end portions of thepipes. The pipes are hcse-couplings By this arrangement it will beapparent that the motive fluid may be supplied independently to eithercylinder or to both sinultaneously and on `either side of each pistn oron both sides simultaneously. This is an exceedingly-important feature,as it allows the d1 ill and motor to be fed to their work under varyingrdegrees of pressure. To nake this clear, let it be assuned that the rearside 57 of the piston 46 has an area of one inch and the oppcsite side58 an area of .40 inch. In like manner assume'that the rear side 59 ofthe piston 45 has an area of .78 inch, and the opposite side 6() an areaof .35 inch. The cross-sectional area ofthe piston rod 47 will thus be.60 inch, and the cresssectional area of the piston-rod 47 'will he .43inch. It now the air or motive iluid is at a ressure of onehundredpounds to the square inch, it will be evident that iffthis motive fluidis adnlitted to the cylinder 44 'at the rear side of the iston 46 oragainst the surface57 the feeding pressure upon the motor will be onehundred pounds. If, however, the motive fluid is adnitted to thecylinder 44 onboth sides ofthe piston '46, thenthe e'l'ect ive pressureupon the piston will be sixty ounds. On the other hand, ii' air isturned into the cylinder 43 against the rear side 59 only of thepiston45 the pressure will be seventy-eight pounds. If turned into thecylinder on both sides of the ypiston 45, the pressure will he partiallycountex balanced and the resultant power secured Will he fortythreepounds. i Again, if the motive fluid is turned into both cylinders, butagainst the rear sides 57 and 59 ofthe pistons only, then the pressurewill be equal tothe sum of one hundred and seventy-eight pounds. ifadnitted to both `e'nds of both cylinders, the result will he onehundred and three pounds pressure; but themotive fluid may also be adnitted against the surfaces 57 and 59 and agairst 58 or 60 separately, sothat still other va1iaticns`may be secured. In faetl with -two cylinderstwelve different feeding pressurcs upon the rrotor may be obtained, andif still other cylinders and pistcns are added it will he clear that thevarying pre ssures 1r ay be maniiclded indefinitely. in connec- Jlionwith tl is feeding rreans the latch 5U is nn in'porant feature. It vis awell-known fact that diills often hecorre securely lodged in thedrill-holes, and, as the diill-sten s are locsely ltted in the rrotors,said notois cannot ordinalily be employed for withdrawing the saire. Bymeans of the latch engaging the drill-sl em and being located outsidethe enlargenifnt it will be evident that if lrotive fluid is adn itiedto the cylinders 43 and 44 agtir st the frontsidrs 58 und 6() only ol"the pistcrs the rrotor will he moved rearwardly, and the latch 50,engaging the enlargement IIC 41 ofthe stern, Willmove the stem with themotor, and thus withdraw it frm' the drillhole. At the sane time thelatch will not interfere with the detachment or engagement )f the d1 illwit h the motor, for it may be freely wung to aninoperative position, aswill be vident by reference to Fig. 4.

Y From the foregoing it is thought that the construction operation, andmany advantagcs of the herein-described invention will be apparent tothese skilled in the art without lurther descl iption, and it Will beunderstood that various changes in the size, shape, proportion, and n.inor details of construction may be resorted to Without departing fromthe spil it or saci ificing any of the advantages ofthe invention. u

:Having thus fully described my invention, what I claim as new, anddesire to secure by 'Letters Patent, is-- v -1. In mechanism of theclass described, the combination With a motor, ofa plurality offluid-actuated feeding devices for` moving the motor, and means foradmitting motive fluid to one or more of the feeding oevices to vary thepressure thereof upon the motor.

2. In mechanism of the class described,

i the combination with a motor, of means for feeding the same to itsWork, said means in-` cluding a plurality of cylinders land' pistons,

'and means for admitting motive fluid to one or morel of thecylinders.

3. In mechanism of the class described, the combination with a motor, ofmeans for feeding the same to its Work, said means inf cluding aplurality of cylinders and pistons,

and means for admitting motive luidrto each cylinder independently ofthe other and on either or both sides of the piston of such cylinder.

4. In mechanism of the class described, the combination With a motor,ofmeans for feeding the same to its work, said means including aplurality of cylinders and pistons, and means for separately admittingmotive fluid to each cylinder on either or both sides of-the istonsthereof, or simultaneously to all of t e cylinders on either or bothsides of the pistons thereof.

5. In mechanism of the class described, the combination with a motor, ofa plurality of fluid-actuated feeding devices of different powers formoving the motor, and means for admitting actuating Huid t'o either ofthe feeding devices to vary the pressure thereof upon the motor. 6. .Inmechanism of the class described, the combination with. a motor, of aplurality of fluid-actuated feeding devices of-dil'ere'nt powersconnected to the motor for moving the saine', and means for admittingactuating flui-l to either of the feeding devices separately or to allsimultaneously.

7, In mechanism of the class described, the

combination with a motor, of a plurality of fluid-actuated feedingdevices, for' moving the motor, said devices comprising cylinc-ers andpistons of diiferent areas operating therein, and means for admittingmotiverl'luid vto either or both of the cylinders. 8. In mechanism ofthe class described,

the combnat ion with a motor, of a plurality ,Y i

of fluid-actuated feeding devices for moving the motor,` said devicescomprising cylincers and pistons of different areas operating therein,and means for admitting motive fluid tol either or both of thecyIincerS, and on either 'or both sides of the pistons thereof.

9. In mechanismof the class described,

4the combination with a motor, of 'a plurality of lfluid-actuatedfeeding devices` connected to the motor for moving the same, saiddevicesbeing located at onerent sices of the motor, anu means for admittingmotive' Huid to each. feeding device independently of the Y 10. Inmechanism of the class described, i`

the combination with a motor, of a plurality of Huid-actuated feedingdevices connected to the motor for moving the same, said devices beinglocated at. different sices of the motor and comprising cylinders andpistons operating in said eyLncers, and means for 12. In mechanism ofthe class described,Y

the combination'with a support, of a motor having a cross-head,cylineri'members located -on opposite sides of the motor, piston membersoperating inthe cylind er members, certain of said members beingconnected to the cross-head, the others being connected to the support,and means for introducin y motive fluid separatelyinto each of thecylinder l members.

13. In mechanism of the 'class described, the combination with asupport, of a motor having a cross-head, cylinr ers of differentdiameters located on opposite sides of the motor and connected to thesupport, piston members of different diameters operating in the cylin 1ers and connected to the crossheafl, and moans for introducing motivefluid into any or all of the cylinders upon either or both sifes of thepistons therein.

14. In mechanism of the class described, tl ie combination vWi th asupport including clamps and a guideWay/mounted between the clamps, of amotor slidably mounted on the guifleway, cylinrers secured, to thesupport by the clamps, nistons operating in the cylinders and connectedto the motor, and means for atmitting motive iluid to the cylminers.

15. In mechanism of the class described, the combination vrlth.f1-support, of a motor thereon, cylinders adjustably secured to thevsupport., pistons operating in the cylinders and connected to the motor,a motive-fluidsupply pipe connecte l to the motor, separate pipesconnectel to the cyln'lers on opposite sides of the pistons,controlling-Valves therein, and exible conduits connecting ,thesupply-pipe and the pipes oi the cylinders.

16. In mechanism of the class described, the combination with a supportincluding a head, said head havingF a longitudinally-disposed guideway,and clamps disposed` on opposite sides of the guideway, of a motorincluding a cylinder slidably mounted in the guideway, feeding devicescomprising cylinders of dilerent diameters, adjustably held by theclamps and located on opposite sides of the motor, pistons of ditlerentdiameters operating in the cylinders and connected to the motor, andmeans for admitting mot-ive .fluid to the motor and to the cylinders onopposite sides of the pistons.

17. In mechanism of the class described,v

the combination with a support, of a motor movably vmounted thereon, afeeding device comi'irisingr a cylinder member and a piston memberoperating therein, a clair. engaging one'member and connected to t 1esupport for aiding said member against movement thereon, and meansconnecting the other member to the motor.

18. In mechanism of the class described,-

the combination with a support, of a motor lnovably mounted thereon, afeeding` device comprising a cylinder member and a pistonmemhcr'operating therein, a clamp mounted on the support and embracingthe cylinder Inember to hold it against movement thereon, and meansconnecting the piston to the motor. y i

19. In mechanism of the class described,

the combination with n. support, including a' head, and a guidcwayformed in the head, of a motor having a slid(` movable in the guideway,a clamp carried hy the head, a cylinder engaged and secured h v theclump, and a piston operating' in the i, \flinder and connected to themotor.

2G. In mechanism of the class described, the combination with a motor,of means for feeding the saine to and withdrawing` it' from its Work,atool-stem operated on by the motor, and a latch pivoted at onecnd tothe motor and havingY its axis of movement suhstantially arallel to thesame, the other end of the latc having a detachable engagement withv themotor, and an intermediate portion of such latch dctachably elfigagfing;the toolstem.

21. In mechanism of the class described,

the combination with a motor, of means for feeding the same to andwithdrawing it from its Work, sait'. means including a cylinder and apiston operating in the cylinder and connected to the motor, a tool oerated on by the motor, and a latch pivoted)on the piston connection andhaving a detachable engagementWith the tool.

22.111 mechanism of the class described, the combination with a motorhaving a toolreceiving socket, of fluid-actuating means for moving the`motor including a cylinder member and a piston member, a connectionbetween one of said members and the motor,

'a tool having a stem that engages in the socket, and alatch mounted onthe said connecticn and engaging the tool-stem to move it with the motorduring the movement of said motor in one direction.

23. In mechanism of the class'described, the combination with a motorhaving a head at one end, and a tool-receiving socket thatextendsthrough the head, of Huid-actuate means for moving the motor,said means coinprising cylinders located on opposite sides of the motor,pistons operating in the cylinders, and piston-rods carried by thepistons and connected to the head of the motor, a tool-stem having anenlargement that engages in the tool-receiving socket, and a latch Ylatch having an intermediate portion that' extends across thetool-receiving socket and the enlargement of the stem that is locatedtherein.

24, ln mechanism of the class described, the combination with an outercasing, ot' an inner casing revolubly mounted in the 'outer casing, apiston-hammer operating in the inner casing, said inner casing having anangular socket in one end, and an angular stud projecting from its otherend, a tool having an angular portion slidahly mounted in the socket androtatable with the casing, a shaft rojictingj through the outer casiniirand havmg a. cap that fits over the stud, and means for rotating theshaft. y

25. In mechanism of the class described,

the combination with an Vouter casing having an angularfluid-conductingchannel,of mo- 'to'ry hammer-piston o]: erating` in theinner end of the shaft. having a pinion and a'hand- 4In testimony that Iclaim the foregoing as my own l have hereto affixed my signature in thepresence'of tWo Witnesses.

THOBLAS TURNER.

casing against the tool-stem, a shaft jour-I l Wheel rotatably mountedon the outer easing i Witnesses:

naled in the outer casing and having a Cap that engages the shaft of theinner easing, the

and having a gear-Wheel meshing with the CHAS. ALEXANDER SMITH,l

pinion. A. B. WILLIAMS.

It is hereby certified that in Letters Patent No. 843,718, grantedFebruary 12, 1907, upon the application of Thomas Turner, of Ottumwa,Iowa, for an improvement in Rook-Drili-Feeding Mechanism, an errorappears in the printed specification requiring correction, as follows:In line 91, page 4f., the compound Word luid-aetuate shouldreadjmid-actuated; and that the said Letters Patent Should be read with`this correction therein that the same may conform to the reeord of theease in the Patent Office.` l i Signed and :sealed this 19th day of'February, A. D., 1907.

[SEAL] F. I. ALLEN7 Commissioner of Patents.

Correct end of the shaftg having a pinion and a'handi 4In testimony thatI claim the foregoing as my own l have hereto affixed my signature inthe presence'of tWo Witnesses.

THUBLAS TURNER. i Witnesses:

CHAS. ALEXANDER SMITH,l A. B. WILLIAMS.

casing against the tool-stem, a slia'ft journaled in the outer casingand having a Cap that engages the shaft of the inner easing, the

Wheel rotatably mounted on the outer easing and having a gear-Wheelmeshing with the pinion.

It is hereby certified that in Letters Patent No. 843,718, grantedFebruary 12, 1907, upon the application of Thomas Turner, of Ottumwa,Iowa, for an improvement in Rook-Drili-Feeding Mechanism, an errerappears in the printed specification requiring correction, as follows:In line 91, page 4C, the compound Word luid-aetuate shouldreadjmid-actuated; and that the said Letters Patent Should be read with`this correction therein that the same may conform to the reeord of theease in the Patent Office.` l i Signed and :sealed this 19th day of'February, A. D., 1907.

[SEAL] F. I. ALLEN7 Commissioner of Patents.

Correct I n is hereby certified thai; in Leters Patent No. 843,718,grantd February 12, 1997;A

upou the application of Thomas Turner, of Ottumwa., Iowa., for animprovement in Rocl-Drll-Feeding Mechanism, requiring correction, asfollows: In line 91, page 4:, the compound word luid-a.ctua.te shouldread jiuid-actuaed; and that the said Letters Patolxt `shouldv be`rlsgui with 4this am error appears in the printed specificationcorrection therein that the same may conform to'the record of the basein the Patent Oce.

Signed and sealed this 19511 day of February, A. D., 1907, V

F, 1. ALLEN,

Commissioner of Patents.

